wcfsetup/install/files/js/3rdParty/codemirror/addon/lint/javascript-lint.js

   1 (function(mod) {
   2   if (typeof exports == "object" && typeof module == "object") // CommonJS
   3     mod(require("../../lib/codemirror"));
   4   else if (typeof define == "function" && define.amd) // AMD
   5     define(["../../lib/codemirror"], mod);
   6   else // Plain browser env
   7     mod(CodeMirror);
   8 })(function(CodeMirror) {
   9   "use strict";
  10   // declare global: JSHINT
  11
  12   var bogus = [ "Dangerous comment" ];
  13
  14   var warnings = [ [ "Expected '{'",
  15                      "Statement body should be inside '{ }' braces." ] ];
  16
  17   var errors = [ "Missing semicolon", "Extra comma", "Missing property name",
  18                  "Unmatched ", " and instead saw", " is not defined",
  19                  "Unclosed string", "Stopping, unable to continue" ];
  20
  21   function validator(text, options) {
  22     JSHINT(text, options);
  23     var errors = JSHINT.data().errors, result = [];
  24     if (errors) parseErrors(errors, result);
  25     return result;
  26   }
  27
  28   CodeMirror.registerHelper("lint", "javascript", validator);
  29
  30   function cleanup(error) {
  31     // All problems are warnings by default
  32     fixWith(error, warnings, "warning", true);
  33     fixWith(error, errors, "error");
  34
  35     return isBogus(error) ? null : error;
  36   }
  37
  38   function fixWith(error, fixes, severity, force) {
  39     var description, fix, find, replace, found;
  40
  41     description = error.description;
  42
  43     for ( var i = 0; i < fixes.length; i++) {
  44       fix = fixes[i];
  45       find = (typeof fix === "string" ? fix : fix[0]);
  46       replace = (typeof fix === "string" ? null : fix[1]);
  47       found = description.indexOf(find) !== -1;
  48
  49       if (force || found) {
  50         error.severity = severity;
  51       }
  52       if (found && replace) {
  53         error.description = replace;
  54       }
  55     }
  56   }
  57
  58   function isBogus(error) {
  59     var description = error.description;
  60     for ( var i = 0; i < bogus.length; i++) {
  61       if (description.indexOf(bogus[i]) !== -1) {
  62         return true;
  63       }
  64     }
  65     return false;
  66   }
  67
  68   function parseErrors(errors, output) {
  69     for ( var i = 0; i < errors.length; i++) {
  70       var error = errors[i];
  71       if (error) {
  72         var linetabpositions, index;
  73
  74         linetabpositions = [];
  75
  76         // This next block is to fix a problem in jshint. Jshint
  77         // replaces
  78         // all tabs with spaces then performs some checks. The error
  79         // positions (character/space) are then reported incorrectly,
  80         // not taking the replacement step into account. Here we look
  81         // at the evidence line and try to adjust the character position
  82         // to the correct value.
  83         if (error.evidence) {
  84           // Tab positions are computed once per line and cached
  85           var tabpositions = linetabpositions[error.line];
  86           if (!tabpositions) {
  87             var evidence = error.evidence;
  88             tabpositions = [];
  89             // ugggh phantomjs does not like this
  90             // forEachChar(evidence, function(item, index) {
  91             Array.prototype.forEach.call(evidence, function(item,
  92                                                             index) {
  93               if (item === '\t') {
  94                 // First col is 1 (not 0) to match error
  95                 // positions
  96                 tabpositions.push(index + 1);
  97               }
  98             });
  99             linetabpositions[error.line] = tabpositions;
 100           }
 101           if (tabpositions.length > 0) {
 102             var pos = error.character;
 103             tabpositions.forEach(function(tabposition) {
 104               if (pos > tabposition) pos -= 1;
 105             });
 106             error.character = pos;
 107           }
 108         }
 109
 110         var start = error.character - 1, end = start + 1;
 111         if (error.evidence) {
 112           index = error.evidence.substring(start).search(/.\b/);
 113           if (index > -1) {
 114             end += index;
 115           }
 116         }
 117
 118         // Convert to format expected by validation service
 119         error.description = error.reason;// + "(jshint)";
 120         error.start = error.character;
 121         error.end = end;
 122         error = cleanup(error);
 123
 124         if (error)
 125           output.push({message: error.description,
 126                        severity: error.severity,
 127                        from: CodeMirror.Pos(error.line - 1, start),
 128                        to: CodeMirror.Pos(error.line - 1, end)});
 129       }
 130     }
 131   }
 132 });